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Ray Optics and Optical Instruments Part 3

Section: Physics

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Question : 3 of 56

Marks: +1, -0

The magnitudes of power of a biconvex lens (refractive index 1.5) and that of a plano-concave lens (refractive index = 1.7) are same. If the curvature of planoconcave lens exactly matches with the curvature of back surface of the biconvex lens, then ratio of radius of curvature of front and back surface of the biconvex lens is ____

[28 Jan 2026 Shift 1]

2:5
5:2
12:5
5:12

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